A preliminary review and in situ observations of the spook fish genus Harriotta (Holocephali: Rhinochimaeridae)
A preliminary review and in situ observations of the spook fish genus Harriotta (Holocephali: Rhinochimaeridae)
复制标题
幽灵鱼属Harriotta(Holocephali:Rhinochimaeridae)的初步研究和现场观察
DOI:
10.1007/s10228-019-00703-y
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发表时间:
2019
影响因子:
1.2
通讯作者:
H.
中科院分区:
文献类型:
--
作者:
Nakayama;N.;Matsunuma;H. and Endo;H.
The taxonomic status of two species of the spookfish genusHarriottaGoode and Bean 1895 is revised and discussed. On the basis of a literature review along with a comparison between the two species formerly considered valid,H. haeckeliKarrer 1972 is synonymized withH. raleighanaGoode and Bean 1895, andAnteliochimaera chaetirhamphaTanaka 1909 previously regarded as a junior synonym of the latter is resurrected as a valid species. The revisedH. raleighanais newly recorded from Japan as well as the North Pacific based on two voucher specimens collected from Hyuga-nada off Kyushu, southern Japan; the record extends the species’ known range approximately 8000 km northward from the South Pacific. In addition, secondary sexual characteristics ofH. raleighanaare documented for the first time, which further illuminates pronounced differences between the two species ofHarriotta;H. raleighanais also revealed to have a smaller size at maturity compared withH. chaetirhampha. In the northwestern Pacific, the species show bathymetric zonation with a narrow sympatric zone at depths around 1600 m (1535–2611 m inH. raleighanavs. 906–1654 m inH. chaetirhampha). In situ behavior of these species is described and discussed from video footage.